Through study of the relation between body stem-diameter and crown diameter of artificially planted forest of Yunnan pine and its growth progress of height and stern-diameter, theoretical dense, theoretical store and appropriate dense of the pine were probed into.

Study on Natural Regeneration of Pinus yunnanensis around Songhuaba Reservoir

The effect of forest fire disturbance on arthropod communities in the forests of Pinus yunnanensis and forests of Pinus yunnanensis var.

Root biomass of different stand-age Pinus yunnanensis forests and its distribution pattern in different soil depths.;

Yunnan pine forest damaged by Tomicus piniperda in Zhanyi County and Luliang County were selected as sample areas.

The Yunnan pine forest, which distributes widely in the gorge area and southwest China, is believed to have effects on soil erosion control and slope protection, through its hydrological effects.

Fixed position observation site and temporary site in Pinus yunnanensis pure forests were set to study the effects of intermediate cutting on structure features and biodiversity.

The experiments for manage and control Tomicus piniperda damage by using 3 % Cartap hydrochloride in Yunnan pine stands in Qiubei county of Yunnan province.